On February 22nd and 23rd, Google rolled out a change to the way that Adwords ads are displayed on search results. As a publisher you might not think that this affects you since it’s a paid search update, but that couldn’t be further from the truth. This change has significant implications for CTR on organic results. Below we describe the change and show you some examples of how the change affects the traffic to your site.
How Blocking Ad Categories Effects AdSense Revenue
Retargeting technology has made online advertising extremely efficient. These days, most internet users will be shown ads that are relevant to their lifestyle and interests. Yet, every once in a while, a user might see an ad that shocks, offends, or is just plain irrelevant. This can often be prevented by blocking ad categories.
Ad categories are essentially silo’s of ads that are organized by their subject matter. This allows Google to ensure they are serving the most relevant material to users visiting pages with Google ad tags on them.
AdSense Ad Sizes & AdSense Ad Units Affect Google AdSense Earnings
If you have been working with ads on your website for some time, it shouldn’t come as a surprise that the ad sizes you choose to display on your site can have a dramatic impact on AdSense earnings (we did a study on it here). There is absolutely no doubt that AdSense ad sizes — and types of AdSense ad units — affect revenue.
Depending on the layout of your site, the performance of different AdSense ad sizes can vary greatly. Generally speaking, AdSense has a few Google display ad sizes they recommend that are most effective. They are as follows:
Recommended Google Ad Sizes (most popular)
336 x 280 large rectangle
300 x 250 medium rectangle
728 x 90 leaderboard
300 x 600 half page
…and on mobile the 320 x 100 large mobile banner (not pictured here).
AdSense allows you to track the ad viewability of impressions served on your site. Why is it important to monitor Active View- and is it the whole story?
It’s increasingly important to not only know how many impressions are served on your site, but also how many of those are actually seen by your users. This has been heralded by Google for some time- with a metric known as Active View. Advertisers buying impressions in the Google Display Network can now pay by bidding on the number of impressions based on whether they have been viewed by a user (vCPM) rather than simply requested or clicked on. Google is ‘working to incorporate’ this metric across their suite of products so it’s a good idea to get in early and start tracking your ad viewability now. 
1. BETTER AD COMBINATIONS ON ALL PAGES = More Money
This is probably the one everyone is most interested in, right? Showing ads in the right place, at the right time, can double your monthly ad income. But why is this?
Testing ad locations or – putting it more correctly – ad combinations (which combination of ads to show a user in certain scenarios- which could be different on each page of a site) is fundamental in determining a site’s ability to generate strong ad earnings.
Everyone knows that it is important to show ads that are prominent enough to make maximum ad revenue but many don’t understand how important it is to avoid spamming away users. Additionally, it is very important to understand how users actually use your site and interact with the ads available.
Every user on a site interacts with it differently and different locations may influence each user in a different way. When you start to think of it this way, testing ad location becomes kind of intimidating. How is it possible to truly optimize in light of all these factors?
In 2015, there were 3.17 billion internet users, that’s just under half of the entire world’s population. Year after year, people are continuing to plug in, and make the online world part of their everyday lives. According to the 2015 Strategy Analytics advertising forecast, 28% of the 187 billion dollars spent on advertising in the US was digital. And, Publishers want to know what piece of that pie is most valuable. So what is the best traffic source for ad revenue?